Go Back   EcoModder Forum > EcoModding > Fossil Fuel Free
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 04-09-2014, 07:28 AM   #1 (permalink)
Master EcoModder
 
sarguy01's Avatar
 
Join Date: Jan 2010
Location: Virginia Beach
Posts: 468

Mazda5 - '12 Mazda 5
90 day: 25.22 mpg (US)

Big D - '11 Dodge Durango Crew
90 day: 18.75 mpg (US)
Thanks: 86
Thanked 86 Times in 53 Posts
Navy is looking to use seawater as fuel...

US Navy: Converting Seawater Into Fuel a 'Game-Changer' | Defense News | defensenews.com

The Navy is researching using seawater to power their ships and planes.

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 04-09-2014, 08:08 AM   #2 (permalink)
Master EcoModder
 
Join Date: May 2008
Location: UK
Posts: 328
Thanks: 11
Thanked 79 Times in 54 Posts
Send a message via MSN to markweatherill
I think we have the solution to the rising sea levels!
  Reply With Quote
Old 04-09-2014, 09:03 AM   #3 (permalink)
Master EcoModder
 
redneck's Avatar
 
Join Date: Jun 2009
Location: SC Lowcountry
Posts: 1,475

Geo XL1 - '94 Geo Metro
Team Metro
Boat tails and more mods
90 day: 72.22 mpg (US)

Big, Bad & Flat - '01 Dodge Ram 3500 SLT
Team Cummins
90 day: 21.13 mpg (US)
Thanks: 194
Thanked 1,184 Times in 588 Posts
.

More information with a brief description of the process.

http://www.navy.mil/submit/display.asp?story_id=80171


>
  Reply With Quote
Old 04-09-2014, 06:53 PM   #4 (permalink)
Too busy for gas stations
 
Superfuelgero's Avatar
 
Join Date: May 2013
Location: The intersection of TN/MS/AL
Posts: 460

Turtle - '92 Honda Civic Vx
Team Honda
90 day: 67.09 mpg (US)

Rolla - '10 Toyota Corolla Le

Beast - '91 Chevy V2500

Bus - '01 VW Eurovan MV

Speed - '93 Harley bored and storked Harley w/ turbo/ nitrous
90 day: 53.09 mpg (US)

Cal - '68 Ford Mustang GT/CS
Thanks: 87
Thanked 175 Times in 113 Posts
Chlorine?
__________________
Shooting for 600 miles of range at 65-70 mph out of a vx.

  Reply With Quote
Old 04-09-2014, 08:12 PM   #5 (permalink)
.........................
 
darcane's Avatar
 
Join Date: Aug 2009
Location: Buckley, WA
Posts: 1,586

Ninja 650R - '06 Kawasaki Ninja 650R
90 day: 52.02 mpg (US)

B*tch - '01 Honda Civic HX
Team Honda
90 day: 38.09 mpg (US)

Ms. Hyde - '06 Cadillac CTS V
Sports Cars
90 day: 16.93 mpg (US)
Thanks: 375
Thanked 480 Times in 311 Posts
While converting seawater to fuel is feasible, this is bordering on fodder for the Unicorn Corral, especially in the quotes from the Navy personnel.

1st Rule of Fight Club, er, Thermodynamics is that energy cannot be created. I think it's a safe bet that these "reactor systems" require a large input of energy (electricity?). I don't believe for a moment that they will be able to use this to create fuel without some outside source of energy.

Now, if they use it to fuel planes that take off from a nuclear powered ship, sure I can see that being useful.
__________________
2001 Civic HX Mods


Past Cars:
CTS-V

2003 Silverado Mods
  Reply With Quote
The Following User Says Thank You to darcane For This Useful Post:
redpoint5 (04-10-2014)
Old 04-10-2014, 08:27 AM   #6 (permalink)
Tire Geek
 
CapriRacer's Avatar
 
Join Date: May 2008
Location: Let's just say I'm in the US
Posts: 760
Thanks: 2
Thanked 353 Times in 217 Posts
I'm with darcane. This just sounds wrong. I can see the dissolved CO2, but where is the hydrogen coming from? I'm not aware that there is dissolved H2 in water that can be extracted. And even then, there appears to be a process that requires the input of energy.

Al in all, this sounds like a less than zero sum game.
__________________
CapriRacer

Visit my website: www.BarrysTireTech.com
  Reply With Quote
Old 04-10-2014, 09:02 AM   #7 (permalink)
EcoModding Apprentice
 
bryn's Avatar
 
Join Date: Jun 2008
Location: trumansburg NY
Posts: 162

sputnik - '93 oldsmobile silhouette
90 day: 23.23 mpg (US)

home sweet home - '92 ford clubwagon E-350 xlt

very excelant - '92 honda civic vx
Thanks: 16
Thanked 10 Times in 10 Posts
I just had the visual of a f-14 with a fish bowl style HHO system zip tied to the rudder
__________________
  Reply With Quote
Old 04-10-2014, 02:22 PM   #8 (permalink)
.........................
 
darcane's Avatar
 
Join Date: Aug 2009
Location: Buckley, WA
Posts: 1,586

Ninja 650R - '06 Kawasaki Ninja 650R
90 day: 52.02 mpg (US)

B*tch - '01 Honda Civic HX
Team Honda
90 day: 38.09 mpg (US)

Ms. Hyde - '06 Cadillac CTS V
Sports Cars
90 day: 16.93 mpg (US)
Thanks: 375
Thanked 480 Times in 311 Posts
Quote:
Originally Posted by CapriRacer View Post
I'm with darcane. This just sounds wrong. I can see the dissolved CO2, but where is the hydrogen coming from? I'm not aware that there is dissolved H2 in water that can be extracted. And even then, there appears to be a process that requires the input of energy.

Al in all, this sounds like a less than zero sum game.
I presume electrolysis to break the water apart. Hence the abundant use of electricity...
__________________
2001 Civic HX Mods


Past Cars:
CTS-V

2003 Silverado Mods
  Reply With Quote
Old 04-10-2014, 03:32 PM   #9 (permalink)
Master EcoModder
 
Join Date: Nov 2012
Location: San Diego, California
Posts: 943
Thanks: 233
Thanked 342 Times in 239 Posts
It is.

Quote:
Originally Posted by CapriRacer View Post
I'm with darcane. This just sounds wrong. I can see the dissolved CO2, but where is the hydrogen coming from? I'm not aware that there is dissolved H2 in water that can be extracted. And even then, there appears to be a process that requires the input of energy.

Al in all, this sounds like a less than zero sum game.
But, that is not the point of the exercise. And, this is far from being a Unicorn tech.

Electricity is needed along with catalysts to power the reaction and the equipment. This has been doable in the lab for decades. The unique part of the NRL application is the use of certain catalysts that provide long chain (C7 and above) output instead of the usual methane. This allows for a possible drop in fuel for diesel and JP-8.

The electricity is problematical, but not overly so if you allow a unit compact enough to be placed on a nuclear powered ship with an abundance of excess electrical output or in-theater where an electrical grid is available. The wild-ass-guesstimate of 6-8 dollars a gallon is the point of the exercise.

Providing fuel to front line units and protecting that fuel all along the supply chain becomes very expensive. 60-80 dollars a gallon are numbers I have heard thrown around for JP-8 to the front. In some theaters, that number can hit 120 dollars a gallon. Providing fuel in theater cuts your costs dramatically even at $10 a gallon pricing. And, it provides you with greater security.

Looking forward, the technology can be widely applied to consumer markets when nuclear power-plants become common. The ability to turn excess electricity into liquid fuel during off peak hours will be invaluable.

Here is more discussion from Green Car Congress:

http://www.greencarcongress.com/2014...0408-navy.html

And a link to the NRL download of the 2010 paper:

http://www.greencarcongress.com/2014...0408-navy.html

Last edited by RustyLugNut; 04-10-2014 at 03:49 PM.. Reason: Added information.
  Reply With Quote
The Following User Says Thank You to RustyLugNut For This Useful Post:
niky (04-11-2014)
Old 04-10-2014, 03:59 PM   #10 (permalink)
.........................
 
darcane's Avatar
 
Join Date: Aug 2009
Location: Buckley, WA
Posts: 1,586

Ninja 650R - '06 Kawasaki Ninja 650R
90 day: 52.02 mpg (US)

B*tch - '01 Honda Civic HX
Team Honda
90 day: 38.09 mpg (US)

Ms. Hyde - '06 Cadillac CTS V
Sports Cars
90 day: 16.93 mpg (US)
Thanks: 375
Thanked 480 Times in 311 Posts
Quote:
Originally Posted by RustyLugNut View Post
But, that is not the point of the exercise. And, this is far from being a Unicorn tech.
I get that. But that's not how the article is written.

Quote:
Originally Posted by Vice Adm. Philip Cullom
We are in very challenging times where we really do have to think in pretty innovative ways to look at how we create energy
Sorry, energy is not created.

Quote:
...researchers warn it will be at least a decade before US ships are able to produce their own fuel on board.
No ship will be producing fuel for itself. It will produce fuel by using its nuclear power plant for aircraft taking off from it or for other ships but not for itself.

As I read it, the rest of the article implies that ships will produce the fuel needed to power themselves. And I'm sorry, that is not going to happen.

__________________
2001 Civic HX Mods


Past Cars:
CTS-V

2003 Silverado Mods

Last edited by darcane; 04-10-2014 at 04:10 PM..
  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com